## count it

### count it

$\frac{n+y}{n}$ is an integer for some integer value of $n$ while $y$ is an integer.find the summation of the value of all $n$

### Re: count it

Write $\frac{n+y}{n}=1+\frac{y}{n}$ so $n$ must divide $y$. Thus sum of the values of all $n$ is actually the sum of divisors of $y$.

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- Phlembac Adib Hasan
**Posts:**1016**Joined:**Tue Nov 22, 2011 7:49 pm**Location:**127.0.0.1-
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### Re: count it

@ SANZEED, Rafe has said $n\in Z$, not $n\in N$.

If $a$ divides $y$, then $-a$ also divides $y$. Hence summation of all values of $n$ is $0$.

In my pc, I am not seeing \mathbb characters. Is it happening also to you? If is, then I think the file 'AMSmath.js' has been damaged in this server. We should inform it to Moon Vai immediately.

If $a$ divides $y$, then $-a$ also divides $y$. Hence summation of all values of $n$ is $0$.

In my pc, I am not seeing \mathbb characters. Is it happening also to you? If is, then I think the file 'AMSmath.js' has been damaged in this server. We should inform it to Moon Vai immediately.

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### Re: count it

No, all \mathbb symbols are loading alright in my PC. You might try clearing your jsMath cache.Phlembac Adib Hasan wrote:In my pc, I am not seeing \mathbb characters. Is it happening also to you? If is, then I think the file 'AMSmath.js' has been damaged in this server. We should inform it to Moon Vai immediately.

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Use $L^AT_EX$, It makes our work a lot easier!

Nur Muhammad Shafiullah | Mahi

Use $L^AT_EX$, It makes our work a lot easier!

Nur Muhammad Shafiullah | Mahi

- Phlembac Adib Hasan
**Posts:**1016**Joined:**Tue Nov 22, 2011 7:49 pm**Location:**127.0.0.1-
**Contact:**